While most of the features of DelphiPlus and DelphiExtra are compatible with nearly all browsers and operating systems, some require specific configurations. Before purchasing a DelphiPlus or DelphiExtra subscription, please review this chart.
| Feature | Internet Explorer Windows |
Firefox Windows |
Chrome Windows |
Firefox Macintosh |
Internet Explorer Macintosh |
| 100 MB Attachment Space | Yes | Yes | Yes | Yes | Yes |
| 100 MB Webspace | Yes | Yes | Yes | Yes | Yes |
| Personal Blogs | 5.0 and up | 1.07 and up | Yes | 1.07 and up | No |
| Access to Plus Zone Forums | Yes | Yes | Yes | Yes | Yes |
| Ad-free Forum viewing | Yes | Yes | Yes | Yes | Yes |
| Become a Forum Host | Yes | Yes | Yes | Yes | Yes |
| Create Plus Zone Forums | Yes | Yes | Yes | Yes | Yes |
| Custom Colors, Premium Forums | Yes | Yes | Yes | Yes | Yes |
| E-mail forwarding | Yes | Yes | Yes | Yes | Yes |
| Forum Moderation Tools | Yes | Yes | Yes | Yes | Yes |
| Jabber IM and Chat* | Yes | Yes | Yes | Yes | Yes |
| Personal Icon | Yes | Yes | Yes | Yes | Yes |
| Signature Filter | Yes | Yes | Yes | Yes | Yes |
| Spell Check | Yes | Yes | Yes | No | No |
| Subscribe to Forum | Yes | Yes | Yes | Yes | Yes |
* Delphi Forums chat requires Java, which is built in to most browsers but can be downloaded for free if needed. Jabber is an open source protocol for instant messaging and chat. It is not browser dependent. Delphi supports the Windows-based Exodus client, but members may choose any client, including Psi, Vista, Gabber, or others that work best with their operating system. See www.jabber.org for more details.